<template>
  <div>
    <table border="1" width="700" style="border-collapse: collapse">
      <caption>
        购物车
      </caption>
      <thead>
        <tr>
          <th>
            <input type="checkbox" v-model="isAll" /> <span>全选</span>
          </th>
          <th>名称</th>
          <th>价格</th>
          <th>数量</th>
          <th>总价</th>
          <th>操作</th>
        </tr>
      </thead>
      <tbody>
        <dogT
          v-for="(item, index) in goodList"
          :key="index"
          :name="item.name"
          :price="item.price"
          :num="item.num"
          :checked="item.checked"
          :index="index"
          @del="delFn"
         
        />
      </tbody>
      <tfoot>
        <tr>
          <td>合计:</td>
          <td colspan="5" style="text-align: center">{{ totalsum}}</td>
        </tr>
      </tfoot>
    </table>
  </div>
</template>

<script>
import dogT from "./components/TotalGog.vue";
export default {
  data() {
    return {
      goodList: [
        {
          name: "诸葛亮",
          price: 1000,
          num: 1,
          checked: false,
        },
        {
          name: "蔡文姬",
          price: 1500,
          num: 1,
          checked: false,
        },
        {
          name: "妲己",
          price: 2000,
          num: 1,
          checked: false,
        },
        {
          name: "鲁班",
          price: 2200,
          num: 1,
          checked: false,
        },
      ],
    };
  },
  components: {
     dogT ,
  },
  methods: {
   delFn(index) {
      this.goodList.splice(index, 1);
    },
  },
  computed: {
    totalsum() {
      return this.goodList.reduce((sum, item) => sum+ item.price, 0);
    },
    isAll: {
      get() {
        return this.goodList.every((item) => item.checked);
      },
      set(val) {
        this.goodList.forEach((item) => (item.checked = val));
      },
    },
  },
};
</script>

<style>
</style>